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UCC28780: How to adjust the frequency of UCC28780？

yy lee
Intellectual 310 points
Part Number: UCC28780

How to adjust the frequency of UCC28780，From 150KHz to 300KHz

  • 0
    TI__Guru* 86266 points

    The UCC28780 flyback converter works in critical conduction mode.  The magnetizing inductance (Lm) sets the minimum switching frequency.   Equation 23 in the UCC28780 data sheet shows how to select Lm based on the minimum switching frequency.

    Regards,

    Mike